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BC840

BC840

Fanstel Corp.
802.15.4, Bluetooth Bluetooth v5.0, Thread, Zigbee® Transceiver Module 2.4GHz PCB Trace Surface Mount
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Overview

The Fanstel BC840 is a high-performance Bluetooth 5.0, Thread, and Zigbee module built around the Nordic nRF52840 SoC. It features an integrated PCB trace antenna and an ARM Cortex-M4F processor, supporting complex wireless protocols and local processing within a compact 7.0x9.2mm footprint.

Why Choose This Part

The module includes a built-in DC-DC converter and supports a wide supply voltage range from 1.7V to 5.5V, simplifying battery-powered designs. Its 1MB Flash and 256kB RAM provide ample headroom for multi-protocol stacks and Over-the-Air (OTA) firmware updates.

Applications

Smart Home Mesh Networking
Leverages Thread and Zigbee support to act as a node or border router in home automation ecosystems.
Secure IoT Gateways
Uses the integrated ARM TrustZone CryptoCell-310 for hardware-accelerated encryption and secure boot operations.
Advanced Wearables
Combines high-speed 2Mbps Bluetooth 5 data rates with a small surface-mount package for fitness trackers and medical monitors.
Industrial Sensing
Integrates multiple interfaces like SPI, QSPI, and I2C to interface with high-resolution industrial sensors while maintaining a low sleep current of 1.5uA.

Key Specifications

Protocol Bluetooth v5.0, Thread, Zigbee
Data Rate 2Mbps
Frequency 2.4GHz
Memory Size 1MB Flash, 256kB RAM
Sensitivity -96dBm
Antenna Type PCB Trace
Mounting Type Surface Mount
Package / Case 64-SMD Module
Power - Output 8dBm
Voltage - Supply 1.7V ~ 5.5V
Serial Interfaces ADC, GPIO, I2C, I2S, PWM, SPI, UART, USB
RF Family/Standard 802.15.4, Bluetooth
Utilized IC / Part nRF52840-CKAA
Operating Temperature -40degC ~ 85degC

Getting Started

Development is streamlined using the Nordic nRF5 SDK or nRF Connect SDK, with support for Zephyr RTOS. Engineers can prototype using the Fanstel EV-BC840 evaluation board and program the module via the standard SWD interface using a Segger J-Link or similar debugger.

Also Consider

EFR32MG24 SiLSilicon Labs - A discrete IC alternative supporting Matter, Zigbee, and Bluetooth with higher flash memory for more complex applications.